Joint for meeting members.



R. D. BAKER.

JOINT r0 8 MEETING MEMBERS.

APPLICATION FILED MAY 22, I914- Patented y 28,1918.

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RGBEBT D. BAKER, 0F DETROIT, MIGHTIGAN.

JGINE EGE MEETING MEMBER$.

Specification of matters Eatent.

Patented May 28, 1%318.

Application filed May 22, 1914. Serial No. 840,191.

To all whom it may concern: Be it known that I, ROBERT D. BAKER, acitizen of the United States of America, residin at Detroit, in thecounty of Wayne and tate of Michigan, have invented certain new andusefulImprovements in Joints for Meeting Members, of which the followingis a specification, reference being had therein to the accompanyingdrawings.

My invention relates to oints for meeting members, and resides in thenovel construction, arrangement and combination of parts as will morefully hereinafter appear and as particularly set forth in the claims.

In the drawings,

Figure 1 is a side elevation, showing the members to be connected,separated;

Fig. 2 illustrates the members attached to each other with my improvedjoint;

Fig. 3 is an end elevation of one of the members; and -FFig. 4 is asection on the line m-w' of Fig. 5 is a section on the line y-y of Fig.2, the eccentric being illustrated in its clamping position.

As my invention is peculiarly adapted for connecting together channelmetallic mem hers, I have illustrated the joint as applied to such astructure, and will describe the invention as embodied in channel-shapedside forms for concrete road constructions, though I do not desire tolimit my protection to this particular use.

Referrin to the one embodiment of the invention s own in the drawings, Aand B designate respectively the two members to be connected together.One of the members as B has a portion C which is adapted to en'- gagethe face D of the member A and is held in engagement with such face bymeans of an eccentric clamping member E. In the preferred form theportion C is formed of a plate secured to the member B by a plurality ofrivets F and having the portion which projects beyond the end of themember B provided with spaced apertures G and H adapted to receive pinsI J projecting outwardly from the face D of the member A. The eccentricE is herein shown as comprising a roller having studs K pivoted in 'apertures L in the flanges M of the channel member A.

To secure the members A and B together the eccentric roller E is turnedto the positionshown in full lines in Fig. 4 and the projection C theninserted longitudinally between the roller E and the pins I and J, thedistance between the ends of the pins and the eccentric roller when theparts are as shown in full lines in Fig. 4, being suflicient to allowthis operation. When the apertures G and H aline with the pins I and J,the roller E is turned to clamp the plate C against the inner face D ofthe member A, as shown in dotted lines in Fig. 4. When the parts arearran ed as shown in Fi 2 the pins I and J wil prevent relative,ongitudinal and lateral movement between the portion C and the member A,and, therefore, hold the members A and B against relative, longitudinaland lateral movement, while the eccentric roller E will avoid sidewisemovement of the portion C and thereby hold the apertured portions G andH in engagement with the pins I and J. While rotation may be imparted tothe eccentric in various ways it is preferred to turn the eccentric bymeans of a bar, one end of which is inserted in a socket E formed in theeccentric. From the foregoing description it will be readily apparentthat a very simple and efficient connection is provided for securing themembers together. While I have shown and described the preferred form ofthe invention, I do not desire to limit the protection to the particularstructure illustrated, but consider the invention of suflicient scope toembody various modifications.

What I claim as my invention is 1. The combination with alined channelmembers, of an eccentric journaled in the flanges of one of said channelmembers and spaced from the face thereof, a plate secured to the face ofthe other of said members having a portion projecting therebeyond andadapted to be inserted between said eccentric and the face of thefirst-mentioned member, there being interlocking projections upon thelast-mentioned face and the pro- 2 memes jection of the plate, for thepurpose demember, for clamping said plate Against the is scribed. same.

2. The combination with two elongated In testimony whereof I afiix mysignature meeting members having alined longitudinal in presence of twowitnesses.

flanges, of a plate connecting said members, disposed between theflanges, said plate having a rigid connection with one of the mem-Witnesses: hers, and an eccentric having its ends respec- WM. J.BELKNAP, tively journeled in the flanges of the other JAMEs P. BARRY.

ROBERT D. BAKER.

